Choice of cranial window type for in vivo imaging affects dendritic spine turnover in the cortex

Nat Neurosci. 2007 May;10(5):549-51. doi: 10.1038/nn1883. Epub 2007 Apr 8.

Abstract

Determining the degree of synapse formation and elimination is essential for understanding the structural basis of brain plasticity and pathology. We show that in vivo imaging of dendritic spine dynamics through an open-skull glass window, but not a thinned-skull window, is associated with high spine turnover and substantial glial activation during the first month after surgery. These findings help to explain existing discrepancies in the degree of dendritic spine plasticity observed in the mature cortex.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • CX3C Chemokine Receptor 1
  • Craniotomy* / methods
  • Dendritic Spines / metabolism
  • Dendritic Spines / ultrastructure*
  • Diagnostic Imaging / methods
  • Glial Fibrillary Acidic Protein / metabolism
  • Green Fluorescent Proteins / genetics
  • Green Fluorescent Proteins / metabolism
  • Luminescent Proteins / genetics
  • Luminescent Proteins / metabolism
  • Mice
  • Mice, Transgenic
  • Microscopy, Confocal / methods
  • Neuroglia / metabolism
  • Neuronal Plasticity / physiology*
  • Receptors, Chemokine / genetics
  • Receptors, Chemokine / metabolism
  • Somatosensory Cortex / cytology*
  • Time Factors

Substances

  • CX3C Chemokine Receptor 1
  • Cx3cr1 protein, mouse
  • Glial Fibrillary Acidic Protein
  • Luminescent Proteins
  • Receptors, Chemokine
  • Green Fluorescent Proteins